Storms across both the Western and Southern United States threaten to disrupt flights as millions of holiday travelers prepare to close out the year.

Storms across the southern and western portions of the United States continue to impact flight schedules on one of the busiest travel weekends of the year, causing delays and cancellations as people head back home after the holiday season.

Severe storms are causing travel disruptions as millions of Americans navigate one of the busiest holiday seasons of the year. Follow Newsweek's live blog.

The wave of storms put a damper on travel plans after the Christmas holiday and contributed to hundreds of flight cancellations nationwide.

Storms are expected to hit a wide swath of the U.S. on one of the busiest travel weekends of the year, according to the National Weather Service (NWS). A stormy weather pattern will continue over the next few days across the northwestern U.

Rain and high winds were expected roll through parts of Oregon and Washington, while fog settled over an area from Kansas City to Chicago.